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Microspore

Megaspore

1. It forms the male or micro gametophyte.

1. It forms the female or mega gametophyte.

2. It is the first cell of male gametophyte.

2. It is the first cell of female gametophyte.

3. In angiosperms the microgametophyte develops into pollen grains.

3. In angiosperms the megagametophyte develops into embryo sac.

4. In gymnosperms the micro gametophyte produces the sperms.

4. In gymnosperm the mega gametophyte produces the archegonium.

5. The microspores are smaller in size.

5. The megaspores are larger in size.

6. In gymnosperms the microspores are produced inside a protective structures called as the microsporangium.

6. In gymnosperms the megaspores are produced inside a protective structures called as the megasporangium.

 

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